Turret 23B (Wall Fell). Its position was established in 1920 purely by reference to the position of Turret 23A, though this cannot be confirmed as remains lie beneath the B6318 Military Road. Location on Ordnance Survey 1:25 000 map: Monument records Public Access Access to the mound marking the Milecastle is via the Hadrian's Wall Path National Trail. References Bibliography External links 23 Corbridge